Explicación paso a paso:
1) 7×+10- 4×>20
7x - 4x > 20 - 10
3x > 10
x > 10/3
2) 9×-3×+11<5×+8
6x + 11 < 5x + 8
6x - 5x < 8 - 11
x < -3
3) 16×+3×-5×<8+6
14x < 14
x < 14/14
x < 1
4) 19×+20-3×>6×+10
16x + 20 > 6x + 10
16x - 6x > 10 - 20
10x > -10
x > -10/10
x > -1
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Explicación paso a paso:
1) 7×+10- 4×>20
7x - 4x > 20 - 10
3x > 10
x > 10/3
2) 9×-3×+11<5×+8
6x + 11 < 5x + 8
6x - 5x < 8 - 11
x < -3
3) 16×+3×-5×<8+6
14x < 14
x < 14/14
x < 1
4) 19×+20-3×>6×+10
16x + 20 > 6x + 10
16x - 6x > 10 - 20
10x > -10
x > -10/10
x > -1